Hanafy, Y. A., M. Y. Mohemed Badawy, and E. S. . Hamed. “Using of Blue Green Algae Extract and Salicylic Acid to Mitigate Heat Stress on Roselle (Hibiscus Sabdariffa L.) Plant under Siwa Oasis Conditions:”. Plant Science Today, vol. 9, no. 3, May 2022, doi:10.14719/pst.1593.